HB9IOI — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9IOI, decoded by SO8OO in southeastern Poland. 458 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-17.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 458 FT8 messages attributed to HB9IOI as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (35%), followed by 20 m (24%) and 60 m (16%). Most decodes (91%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -5.2 dB.

Overview

458
Messages attributed
33
UTC dates decoded
79
Active 15-min windows
-5.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-14
Last attributed message: 2026-10-17 19:41 UTC

Observed FT8 message patterns

Attributed sample
458 messages
Active dates
33 UTC dates
Estimated median S/N
-5.2 dB
Estimated 10th-90th percentile
-18 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 70, moderate (-15 to -9 dB) 105, strong (≥ -8 dB) 283.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to HB9IOI

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
JN47 · 294 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-10-17 19:39 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandHB9IOI S/NCounterpartCounterpart S/NMsgsCapture
10-17 19:40 160m -24 / - 9A4ZM -4 / -13 3 Partial capture
10-17 19:39 160m -24 / -17 SM5KNV +6 / - 3 ✓ Closing observed
10-13 21:09 160m -11 / - HA5AO +2 / -2 8 ✓ Closing observed
10-13 21:06 80m -4 / -6 OZ1LGJ -1 / -22 4 ✓ Full exchange observed
10-13 21:05 80m -2 / - OZ1LXL - / - 3 Partial capture
10-13 21:01 60m +1 / - ON7VZ +2 / -14 6 ✓ Full exchange observed
10-13 21:00 60m +2 / +6 PA1AA -13 / -1 6 ✓ Full exchange observed
10-13 20:58 60m -1 / - OM1AGE - / -21 2 ✓ Closing fragment
10-13 20:57 60m -5 / - OE6JCG -8 / -8 5 ✓ Full exchange observed
10-13 20:57 60m -2 / - F6FHZ -20 / -19 7 ✓ Full exchange observed
10-13 20:57 60m - / - PA1AA -8 / - 2 Partial capture
10-13 20:55 60m -3 / - OE9RWH +6 / -12 5 ✓ Full exchange observed
10-11 18:07 60m -8 / - 9H6C - / -18 28 Partial capture
10-11 18:03 60m +4 / - 9H6C - / - 4 Partial capture
10-10 22:22 160m -7 / - CT2GQA - / - 6 Partial capture
10-10 22:19 160m -12 / -20 UA3PY +6 / -5 6 ✓ Full exchange observed
10-10 21:59 160m -19 / -15 EW2ZC +9 / +5 8 ✓ Full exchange observed
10-10 13:31 10m - / -12 CN8NS -19 / - 2 ✓ Closing fragment
10-08 21:22 160m -24 / -16 DL5BTE +4 / - 3 ✓ Closing observed
10-08 21:22 160m -24 / -15 UX5UO -5 / -16 11 Partial capture
10-08 21:21 160m -24 / -13 OZ1FHU -8 / - 3 ✓ Closing observed
09-21 22:21 160m - / -10 IW4AOT +2 / - 2 ✓ Closing fragment
09-21 22:18 160m - / -18 G6PWS -15 / - 2 ✓ Closing fragment
09-21 22:16 160m -16 / - SM2LKW - / - 4 Partial capture
09-21 21:39 160m -17 / - UA3AGW - / - 3 Partial capture
09-12 20:24 160m -23 / -10 GW8DX +4 / - 3 ✓ Closing observed
09-12 20:19 160m -23 / 0 HB9CXZ -5 / - 3 ✓ Closing observed
09-12 20:17 160m -24 / - DO1BWO - / -9 2 ✓ Closing fragment
09-12 17:28 40m +10 / - LX1FDE - / - 4 Partial capture
09-02 20:44 40m +6 / +1 F5PBG +3 / +3 7 ✓ Full exchange observed
09-02 20:43 40m +7 / -10 RI1FJL -7 / -19 4 ✓ Full exchange observed
09-02 20:33 40m +8 / - RI1FJL - / - 9 Partial capture
09-02 20:17 40m +4 / - RI1FJL - / - 4 Partial capture
09-01 22:47 160m -16 / - 4O7CC - / - 2 Partial capture
09-01 22:47 160m - / -14 F4FTV -19 / - 5 ✓ Closing fragment
09-01 22:45 160m -12 / -20 OK1DXR +6 / -2 7 ✓ Full exchange observed
09-01 22:45 160m -11 / -16 OE3OOG -2 / -9 6 ✓ Full exchange observed
09-01 22:44 160m -17 / -12 OK1XD -11 / +6 5 ✓ Full exchange observed
09-01 22:42 160m -14 / -15 LZ2IP +14 / - 4 ✓ Closing observed
08-31 19:34 20m -2 / -10 EA3IDY +10 / -13 7 ✓ Full exchange observed
08-31 19:31 20m -4 / - EP2AES - / - 7 Partial capture
08-30 18:59 40m +12 / - V51WH - / -16 2 ✓ Closing fragment
08-30 18:57 40m +8 / -4 LX9UN +7 / - 16 ✓ Full exchange observed
08-30 18:52 80m - / - UA4FKT +6 / - 4 Partial capture
08-30 18:48 80m -13 / - HB0WR - / - 3 Partial capture
08-30 18:36 40m 0 / - V51WH - / - 3 Partial capture
08-29 22:13 20m - / -6 V47JA -22 / - 2 ✓ Closing fragment
08-29 22:00 40m +10 / - OK1WCF - / -12 2 ✓ Closing fragment
08-29 21:57 40m +16 / - 4O7DX - / +3 6 ✓ Closing fragment
08-29 21:54 40m +10 / -10 RN6HK -4 / +4 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m
UTC    dB Audio  Message
222445  -4  780  CT2GQA HB9IOI JN47
210900 -17 1175  HA5AO HB9IOI JN47 (x7)
211315  +2 1877  HB9IOI HA5AO RR73
193900 -24 1452  SM5KNV HB9IOI JN47
193915  +6 1060  HB9IOI SM5KNV -17 (x2)
194015  -2 1449  HB9IOI 9A4ZM JN86 (x2)
194130 -24 1453  9A4ZM HB9IOI -13
80m
UTC    dB Audio  Message
184830 -12 2487  HB0WR HB9IOI JN47 (x3)
185145  +2 2775  HB9IOI HB0WR RR73
185215 +10 2487  HB9IOI UA4FKT LO23 (x4)
210515  -1 1359  OZ1LXL HB9IOI JN47 (x3)
210645  +2 1360  OZ1LGJ HB9IOI JN47
210700  -1 2833  HB9IOI OZ1LGJ -06
210715  -3 1360  OZ1LGJ HB9IOI R-22 (x2)
60m
UTC    dB Audio  Message
210000 -13 1450  HB9IOI PA1AA JO21
210000 -21 1390  HB9IOI F6FHZ R+12
210015  +1 1391  F6FHZ HB9IOI RR73
210030 -17 1450  HB9IOI PA1AA JO21
210030 -18 1390  HB9IOI F6FHZ 73
210045  +1 1391  PA1AA HB9IOI -01
210100 -12 1450  HB9IOI PA1AA R+06
210100  +0  757  HB9IOI ON7VZ JO10
210115  +3 1391  PA1AA HB9IOI RR73
210130 -10 1450  HB9IOI PA1AA 73
210130  +3  757  HB9IOI ON7VZ JO10
210145  +2 1391  ON7VZ HB9IOI -14
210200  +3  757  HB9IOI ON7VZ R+17
210215  +0 1391  ON7VZ HB9IOI RR73
210230  +1  757  HB9IOI ON7VZ 73
10m
UTC    dB Audio  Message
191545 -23 1486  OZ1AXG HB9IOI JN47
103930 -11 1810  HB9IOI SV1CQN -16
111115 -16 2396  HB9IOI D2ACE RR73
093630  -7  633  HB9IOI SV2CLJ KN10 (x4)
113400  -5  828  HB9IOI IT9VCE +02 (x2)
133130 -18 2127  HB9IOI CN8NS -12 (x2)
140400  -6  408  HB9IOI C91RU -10
140430 -10  408  HB9IOI RR73; RA3AHN <...> +02
40m
UTC    dB Audio  Message
204315  +7  397  RI1FJL HB9IOI JN47
204330  -7  445  HB9IOI RI1FJL -10
204345 +11  397  RI1FJL HB9IOI R-19 (x2)
204430  +5  447  HB9IOI F5PBG IN78 (x3)
204545  +7  397  F5PBG HB9IOI +03
204600  +4  447  HB9IOI F5PBG R+01
204615  +6  397  F5PBG HB9IOI RR73
204630  +3  447  HB9IOI F5PBG 73
172800  +9  858  LX1FDE HB9IOI JN47 (x4)
20m
UTC    dB Audio  Message
191130 -24 1414  EP2AES HB9IOI JN47 (x6)
193400  +7 2159  HB9IOI EA3IDY JN01
193415  -8 1958  EP2AES HB9IOI JN47
193430 +12 2159  HB9IOI EA3IDY JN01
193445  -1 1958  EP2AES HB9IOI JN47
193500 +12 2159  HB9IOI EA3IDY JN01
193515  -4 1958  EA3IDY HB9IOI -13
193530 +10 2159  HB9IOI EA3IDY R-10
193545  -1 1958  EA3IDY HB9IOI RR73
193600  +7 2159  HB9IOI EA3IDY 73

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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